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Surface meltwater impounded by seasonal englacial storage in West Greenland

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Surface meltwater impounded by seasonal englacial storage in West Greenland. / Kendrick, A. K.; Schroeder, D. M.; Chu, W.; Young, T. J.; Christoffersen, P.; Todd, J.; Doyle, S. H.; Box, J. E.; Hubbard, A.; Hubbard, B.; Brennan, P. V.; Nicholls, K. W.; Lok, L. B.

In: Geophysical Research Letters, Vol. Early View, 07.10.2018.

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Kendrick, AK, Schroeder, DM, Chu, W, Young, TJ, Christoffersen, P, Todd, J, Doyle, SH, Box, JE, Hubbard, A, Hubbard, B, Brennan, PV, Nicholls, KW & Lok, LB 2018, 'Surface meltwater impounded by seasonal englacial storage in West Greenland' Geophysical Research Letters, vol. Early View. https://doi.org/10.1029/2018GL079787

APA

Kendrick, A. K., Schroeder, D. M., Chu, W., Young, T. J., Christoffersen, P., Todd, J., ... Lok, L. B. (2018). Surface meltwater impounded by seasonal englacial storage in West Greenland. Geophysical Research Letters, Early View. https://doi.org/10.1029/2018GL079787

Vancouver

Kendrick AK, Schroeder DM, Chu W, Young TJ, Christoffersen P, Todd J et al. Surface meltwater impounded by seasonal englacial storage in West Greenland. Geophysical Research Letters. 2018 Oct 7;Early View. https://doi.org/10.1029/2018GL079787

Author

Kendrick, A. K. ; Schroeder, D. M. ; Chu, W. ; Young, T. J. ; Christoffersen, P. ; Todd, J. ; Doyle, S. H. ; Box, J. E. ; Hubbard, A. ; Hubbard, B. ; Brennan, P. V. ; Nicholls, K. W. ; Lok, L. B. / Surface meltwater impounded by seasonal englacial storage in West Greenland. In: Geophysical Research Letters. 2018 ; Vol. Early View.

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@article{bd73e322e1bd49ab9deed335488c564a,
title = "Surface meltwater impounded by seasonal englacial storage in West Greenland",
abstract = "The delivery of surface meltwater through englacial drainage systems to the bed of the Greenland Ice Sheet modulates ice flow through basal lubrication. Recent studies in Southeast Greenland have identified a perennial firn aquifer; however, there are few observations quantifying the input or residence time of water within the englacial system and it remains unknown whether water can be stored within solid ice. Using hourly stationary radar measurements, we present observations of englacial and episodic subglacial water in the ablation zone of Store Glacier in West Greenland. We find significant storage of meltwater in solid ice damaged by crevasses extending down to 48 m below the ice surface during the summer which is released or refrozen during winter. This is a significant hydrological component newly observed in the ablation zone of Greenland that could delay the delivery of meltwater to the bed, changing the ice dynamic response to surface meltwater.",
keywords = "Glacial hydrology, Radio glaciology, Englacial storage, Subglacial draiange, Greenland Ice Sheet",
author = "Kendrick, {A. K.} and Schroeder, {D. M.} and W. Chu and Young, {T. J.} and P. Christoffersen and J. Todd and Doyle, {S. H.} and Box, {J. E.} and A. Hubbard and B. Hubbard and Brennan, {P. V.} and Nicholls, {K. W.} and Lok, {L. B.}",
year = "2018",
month = "10",
day = "7",
doi = "10.1029/2018GL079787",
language = "English",
volume = "Early View",
journal = "Geophysical Research Letters",
issn = "0094-8276",
publisher = "John Wiley & Sons, Ltd.",

}

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TY - JOUR

T1 - Surface meltwater impounded by seasonal englacial storage in West Greenland

AU - Kendrick, A. K.

AU - Schroeder, D. M.

AU - Chu, W.

AU - Young, T. J.

AU - Christoffersen, P.

AU - Todd, J.

AU - Doyle, S. H.

AU - Box, J. E.

AU - Hubbard, A.

AU - Hubbard, B.

AU - Brennan, P. V.

AU - Nicholls, K. W.

AU - Lok, L. B.

PY - 2018/10/7

Y1 - 2018/10/7

N2 - The delivery of surface meltwater through englacial drainage systems to the bed of the Greenland Ice Sheet modulates ice flow through basal lubrication. Recent studies in Southeast Greenland have identified a perennial firn aquifer; however, there are few observations quantifying the input or residence time of water within the englacial system and it remains unknown whether water can be stored within solid ice. Using hourly stationary radar measurements, we present observations of englacial and episodic subglacial water in the ablation zone of Store Glacier in West Greenland. We find significant storage of meltwater in solid ice damaged by crevasses extending down to 48 m below the ice surface during the summer which is released or refrozen during winter. This is a significant hydrological component newly observed in the ablation zone of Greenland that could delay the delivery of meltwater to the bed, changing the ice dynamic response to surface meltwater.

AB - The delivery of surface meltwater through englacial drainage systems to the bed of the Greenland Ice Sheet modulates ice flow through basal lubrication. Recent studies in Southeast Greenland have identified a perennial firn aquifer; however, there are few observations quantifying the input or residence time of water within the englacial system and it remains unknown whether water can be stored within solid ice. Using hourly stationary radar measurements, we present observations of englacial and episodic subglacial water in the ablation zone of Store Glacier in West Greenland. We find significant storage of meltwater in solid ice damaged by crevasses extending down to 48 m below the ice surface during the summer which is released or refrozen during winter. This is a significant hydrological component newly observed in the ablation zone of Greenland that could delay the delivery of meltwater to the bed, changing the ice dynamic response to surface meltwater.

KW - Glacial hydrology

KW - Radio glaciology

KW - Englacial storage

KW - Subglacial draiange

KW - Greenland Ice Sheet

U2 - 10.1029/2018GL079787

DO - 10.1029/2018GL079787

M3 - Article

VL - Early View

JO - Geophysical Research Letters

T2 - Geophysical Research Letters

JF - Geophysical Research Letters

SN - 0094-8276

ER -

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ID: 256012510